English for Electronics

Unit 7

-Testers and meters-

Oscilloscope

An Oscilloscope is a device that creates a graph showing voltage against time.

Transistor tester

A transistor tester is a device that measures how well transistors work. Some transistor testers measure how a transistor reacts to a real signal. Others measure approximate gain, high-frequency cutoff point, and leakage.

Capacitance meter

A capacitance meter is a device used to smooth power output. It is known for being unreliable.

Signal generator

A signal generator is a device that tests whether electrical equipment is working by sending a test signal into the equipment. It is mostly used to test analog equipment.

Frequency counter

A frequency counter is a device that counts a signal`s frequency. It does this by opening a gate, and tracking the numbers of signal cycles that pass through before the gate closes again.

Analog meter

An analog meter is an old-fashioned device that shows measurements by means of a moving needle. It is useful for showing slow fluctuating voltages and small dips and spikes of voltage.

Isolation Transformer

An isolation transformer is a transformer that moves electrical power to equipment, while keeping the power input and power output apart. This is safety measure.

Inductance meter

An inductance meter is a device used to find out the inductance value of coils.

Logic analyzer

A logic analyzer is a device that displays signals in a digital circuit. It can show the relationships between different variables. It is similar to an oscilloscope.

Spectrum analyzer

A spectrum analyzer is a kind of scope that shows voltage against frequency.

Multimeter

A multimeter is a piece of equipment that can measure several different things. It can measure voltage, resistance, and current.